Mining-machine



No. 752,180. .y PATENTED PEB. Ie, 1904..

I E. I. IIAUSGIISII.

. MINING MACHINE.

. APPLIUAIIQN FILEII JUNE zo, 190s. No MODEL. 'z SHEETS-SHEET 1.

Iunnllrlmm 4Imm" III wvewfoz EdwardRRazasehe PATENTED PEB. 16, 1904.

E. P. NAUSGHNN.

MINING MACHINE.

APPLIATION FILED JUNE l20, 1903.

2 SHEETS-.SHEET NO MDDEL.

` Maffe@ v Edwardawbhe LJ( www# mman. D. u.

No. l752,180.

Patented February 16, 1904.

UNITED STATES PATENT OFF-ICE.

EDWARD P. RAUSOHER, OF COLUMBUS, OHIO.

MINING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 752,180, dated February16, 1904.

Application filed Tune 20, 1903. Serial No. 162,441. (No model.)

To a/ZZ whom t mayconcern:

Be it known that I, EDWARD P. RAUscHEn,

l a citizen of the United States, residing at Columbus, in the county ofFranklin and State of Ohio, have invented certain new and usefulImprovements in Mining-Machines; and I do hereby declare the followingto be afull, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

This invention, relating to mining-machines of the pick type, has forits object to provide a cheap, simple, strong and effective constructionwhich shall not be as liable to injury by' means for effecting therotation of a reciprocable pick.

Other objects will appear from the following description.

The features of novelty are pointed out in the claims.

In the accompanying drawings, illustrating one embodiment only of theinvention, Figure 1 is a top plan view, the cap for covering thedriving-pinion and master-gear being removed. Fig. 2 is mainly a sideelevation with parts in section. Fig. 3 is a detail of the pick, showingit coupled with the plunger of pick-stock. Fig. 4is a view of theoperative end of the Vpick as seen from a plane at right angles to thatused in Fig. 3. Fig. 5 is a horizontal sectional View of the rearbearing for the plunger. Fig. 6 is a rear elevation of the rear bearing.Fig. 7 and Fig. 8 are rear and side elevations, respectively, of theforward bearing for the plunger. Figs. 9 and 10 are rear and side views,respectively, of the trunnions upon which the wheels to support themachine are journaled. Fig. 11 shows the swivel connection between therear end of the plunger or pick-stock and pitman.

1 and 1DL are upper and lower frame bars orI beams, respectively,extending longitudinallyT of the machine.

2 is the casing for containing the motor or driving apparatus. This isindicated to be an electric motor; but other kinds of apparatus can beemployed. The frame bars or beams 1 and lL are secured at their rearends in lugs 'will not be disturbed.

'length and to converge toward each other in their forward portions, theforward extremities being focused in the piece 3, containing the forwardbearing.

4 designates the bracket or piece containing the rear bearing for theplunger. This is held between the four frame-bars 1 1 and 1 and 1f* bymeans of clamps 4, embracing the bars and clamped to the bracket 4 bybolts. bracket 4 and the clamps 4 serve also to brace and retain theframe-bars l and 18L in stable position near their middles.

5 designates the tool-stock or plunger. This has a sliding fit in acollar-bearing 6, secured in the bracket 4. The collar-bearing has onits outer side a spherical or ball contour fitting .in a socketcorresponding in contour on the toothed gear 6a. This collar-bearingalso has a key or spline 6b to engage a longitudinal keyway or groove 5ain the plunger or pick-stock, so that kthe latter can be rotated axiallywhile reciprocating longitudinally. Room will be left in the bracket4 ateach side of the collarbearing t0 permit the bracket to rock universallyon the collarbearing. In other words, should the frame be distorted byfalling coal or rock the alinement of the collar-bearing The bearing forthe forward end of the pick-stock can be in all respects like that justdescribed in connection with the bracket 4, except, of course, that thetoothed gear 6*l need not be duplicated there. The bearing of thepick-stock in the bracket 4, as well as that in the part 3, mightappropriately be termed a universal or Lballand-socket bearing.

7 designates the master driving-gear. This is supported on a web orshelf projecting for- 'ward from the casing 2. The lower end of theshaft 7 a of the master-gear is furnished with a crank 7b. Themaster-gear is driven The The collarbearing 6 has secured to or castwith it a` roo v l the spring or crank-rod.

by pinion 8 on the power-shaft 8a. Connected with the crank 7 b is apitman 7 c, and interposed between the pitman 7C and the rear end of thepick-stock 5 is a spring 9, the ends of which are hooked in links 10,said links being caught under hooks 1l on a collar 11, swiveled on therear end of the pick-stock 5. The swiveled connection between the springand the plunger is illustrated in detail in Fig. 11. This connection ismade swiveled, so that the pick stock in the particular constructionshown can be axially rotated without rotating shown to be held on thepick-stock by means of a nut 5b, wliichcan be suitably locked to preventit from turning off.

'The swivel connection just described can be located between the spring9 and the pitman 7c instead of between the spring and pick-stock.

Handles 12 on the casing 2 for convenience in moving, holding, anddirecting the machine in operation are shown to be provided.

The toothed gear 6 is shown to be engaged by a pinion 13 on a shaft 13,reachingA rearward to the rear of the Amachine within convenientdistance of the operator, a hand-wheel 13b being provided for turningthe shaft, so that the position of the cutting end of the pick can bevaried. 14 designates-the pick. This preferably is removably coupled bya coupling 14"L to the pick-stock 5. The coupling 14 is made with atransverse hole 14D, into which a drift' may be driven to loosen thepick when it is desired to remove it.

15 designates a trunnion for one of the carrying-wheels 16. The trunnionprojects laterally from a base 15, and the latter has perforated ears151 to permit the base to be slipped on and secured to the frame-bars 1and l, l

The master-gear 7 and pinion 8 can be protected fromfalling things by anappropriate hood 2d, removably attached to the casing 2. The operation,which can be readilyunderstood from the Jforegoing description and theaccompanying drawings, is very simple. The machine is moved up to a wallof coal and the pick directed toward the place in the wall to be cut.The rotation of the master-wheel effects, through the crank of its shaftand the pitman, a rectilinear reciprocation of the toolstock and pick.The impact of the pick breaks up'the coal, themachine being moved on itswheels to -make the cut as desired.' I/Vhile thepick is reciprocatingthe cutting end thereof can be varied in its position, as before stated.It will be observed by those skilled in ma.-

i chinery that the frame-bars 1 and 18L can be machine.

considerably bent or distorted without materially interfering with theoperation of the This is because the universal bearings in the bracket 4and part 3 are maintained in their horizontal or normal position, eventhough the surrounding frame be moved to some extent out of its primaryposition.

The collar 11 is What I claim, and desire to secure by Letters Patent,is-

1. In a mining-machine of the pick type, the combination of a frame, asocket-bearing supported in the frame, a ball universally movable in thesocket-bearing, a pick-stock passing through and reciprocable in saidball,

and means for mechanically rotating the pickstock. 2. In amining-machine of the pick type, the combination of a frame, areciprocating pick-stock supported therein, and universal bearings inthe frame for the rear and forward portions of the pick-stock.

3. In a mining-machine of the pick type,

the combination of a frame, a reciprocatingV and rotatable pick-stock, auniversal bearing in the frame supporting said pick-stock, said bearingconnected with said pick-stock to `rotate therewith and having a gearthereon, a rearwardly-extending shaft supported in the frame havingthereon a pinion to engage the aforesaid gear.

4. Ina mining-machine of the pick type, the combination of a frame, areciprocating and rotatable pick-stock, a universal bearing in the framesupporting said pick-stock, a

gear connected with said pick-stock, a rearwardly extending shaftvsupported in the frame having' a pinion thereon to engage the aforesaidgear.

5. In a mining-machine of the pick type, tledcombination of amotor-casingl 2, a bearing-piece for the pick-stock, a ball supported insaid bearing-piece and universally movable therein, frame-bars 1 and 1f*connecting said motor-casing and bearing-piece, a pick-stock supportedin the ball and reciprocable therein and means for reciprocating thepick-stock.

6. In a mining-machine of the pick type, the combination of amotor-casing 2, a bearing-piece 3, frame-bars 1 and l, connecting saidmotor-casingand bearing-piece, a bearing-bracket 4, and a reciprocablepick-stock supported in the bracket 4 and bearing-piece 3, and means forreciprocating the pick-stock.

7. In a mining-machine, the combination of frame-bars 1 and 1, atrunnion for a carryingwheel thereof comprising a base portion adaptedto engage said bars l and l, and a spindle projecting from said base toreceive the wheel.

8. In a mining-machine of the pick type, the combination of a frame, vabearing-support in the frame, a bearing universally movable in thebearing-support,a pick-stock pass'- ing through and reciprocable in saidbearing, and means for .mechanically rotating the pickstock.

In testimony whereof I affix my signature in presence of two witnesses.-

EDWARD P. RAUSCHE

